The rising sun is shown behind the Curly Lambeau statue with temperatures around -20 at Lambeau Field on Thursday, January 31, 2019 in Green Bay, Wis.(Photo11: Adam Wesley/USA TODAY NETWORK-Wisconsin)

The Packers-Bears rivalry is always a hot topic, even when the wind chill is 50 below zero.

Late-night talk show host Stephen Colbert on Wednesday suggested people in Chicago look only as far as the nearest Packers fan for some shelter from the brutal cold.

“If you’re really cold, slice open and crawl inside a visiting Packers fan. OK, it works, I’m telling you. They’ve got the insulating layer of cheese. Keep you safe for days. You can eat your way out," he said during a "Late Show with Stephen Colbert" segment in which he offered winter weather tips to people in Chicago, a city in which he once lived.

Closer to home, Charlie Berens, the Wisconsin-born comedian who hosts "The Manitowoc Minute" (the weekly video newscast returns next week), had to dig out the full-length camouflage jacket for a video in which he puts a little-known (wink wink) Wisconsin proverb to the test.

A sample of a few other polar vortex punchlines from late-night TV this week:

“Today, the polar vortex brought the coldest temperatures in 20 years to parts of the Midwest. Midwesterners were so upset they almost started cursing. ‘Gosh darn it! It’s flipping freezing!’”

— Jimmy Fallon, “The Tonight Show with Jimmy Fallon”

“Wisconsinites have sought shelter under a thick layer of melted cheddar.”

— Stephen Colbert, “The Late Show with Stephen Colbert”

“To save energy, people in Minnesota have been asked not to heat their homes above 60 degrees. ‘Yeah,’ people in Minnesota replied, ‘(expletive) you.’”

— Conan O’Brien, “Conan”

“I heard experts say that, during a polar vortex, you shouldn’t leave items like beer, eggs and medicine in your car. Though, if that's what you’re keeping in your car, the polar vortex is the least of your problems.”